63746320 has 80 divisors (see below), whose sum is σ = 163435968. Its totient is φ = 22929920.

The previous prime is 63746299. The next prime is 63746341. The reversal of 63746320 is 2364736.

It is an interprime number because it is at equal distance from previous prime (63746299) and next prime (63746341).

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93822 + ... + 94498.

Almost surely, 2^63746320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63746320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81717984).

63746320 is an abundant number, since it is smaller than the sum of its proper divisors (99689648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63746320 is a wasteful number, since it uses less digits than its factorization.

63746320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 63746320 is about 7984.1292574707. The cubic root of 63746320 is about 399.4708001776.

The spelling of 63746320 in words is "sixty-three million, seven hundred forty-six thousand, three hundred twenty".